1. A fish tank has dimensions 46 cm wide by 1.0 m long by 0.60 m...
1. A fish tank has dimensions 46 cm wide by 1.0 m long by 0.60 m high.
If the filter should process all the water in the tank once every 3.0 h, what should the flow speed be in the 3.0-cm-diameter input tube for the filter?
Express your answer to two significant figures and include the appropriate units.
2. What is the approximate mass of air in a living room 4.9m×4.0m×2.8m? The density of air is 1.29 kg/m3.
Express your answer to two significant figures and include the appropriate units.
Homework Answers
What is the approximate mass of air in a living room 4.3m×3.9m×2.7m? The density of air...
What is the approximate mass of air in a living room 4.3m×3.9m×2.7m? The density of air is 1.29 kg/m3. Express your answer to two significant figures and include the appropriate units.
In one experiment, 9000 photons are detected in a 0.60 mm -wide strip where the amplitude...
In one experiment, 9000 photons are detected in a 0.60 mm -wide strip where the amplitude of the electromagnetic wave is 100 V/m. Part A What is the wave amplitude at a nearby 0.90 mm -wide strip where 5000 photons are detected? Express your answer to two significant figures and include the appropriate units. ? MÅ Value N O 2 Units A = Submit Request Answer
The magnetic field inside an air-filled solenoid 31 cm long and 3.0 cm in diameter is...
The magnetic field inside an air-filled solenoid 31 cm long and 3.0 cm in diameter is 0.78 T. Approximately how much energy is stored in this field? Express your answer to two significant figures and include the appropriate units.
Part A What is the approximate mass of air in a living room 5.3 m x...
Part A What is the approximate mass of air in a living room 5.3 m x 4.0 m x 2.9 m? The density of ar s1,29 kg/m Express your answer to two significant figures and include the appropriate units. m- Value Units
Part A Determine the inductance of a 0.60-m-long air-filled solenoid 2.7 cm in diameter containing 8800...
Part A Determine the inductance of a 0.60-m-long air-filled solenoid 2.7 cm in diameter containing 8800 loops. Express your answer using two significant figures. vu ΑΣΦ ? L = 0.13 H Submit Previous Answers Request Answer X Incorrect; Try Again
What is the magnitude of the net electric force on charge B in the figure?(Figure 1) Assume a = 2.1 cm and b = 0.60 cm.
Part A What is the magnitude of the net electric force on charge B in the figure?(Figure 1) Assume a = 2.1 cm and b = 0.60 cm. Express your answer to two significant figures and include the appropriate units. Part B What is the direction of the net electric force on charge B in the figure? The force is directed up. The force is directed down.
Constants Part A Suppose that you are in a 15-m-long hallway with all doors closed. Model...
Constants Part A Suppose that you are in a 15-m-long hallway with all doors closed. Model the hallway as a tube closed at both ends. The speed of sound in air is 343 m/s. Determine the fundamental frequency of the hallway Express your answer to two significant figures and include the appropriate units. Value Units Submit Request Answer Part B Determine the first overtone frequency of the hallway Express your answer to two significant figures and include the appropriate units....
A concrete highway is built of slabs 14 m long (15 ∘C). Part A How wide...
A concrete highway is built of slabs 14 m long (15 ∘C). Part A How wide should the expansion cracks between the slabs be (at 15 ∘C) to prevent buckling if the range of temperature is -30∘C to +47 ∘C? Express your answer to two significant figures and include the appropriate units. ΔL ΔL = nothingnothing SubmitRequest Answer
Blood is placed in a bottle 1.90 m above a 3.7-cm-long needle, of inside diameter 0.45...
Blood is placed in a bottle 1.90 m above a 3.7-cm-long needle, of inside diameter 0.45 mm , from which it flows at a rate of 6.9 cm3/min . What is the viscosity of this blood? Assume ρblood = 1.05×103kg/m3. Express your answer to two significant figures and include the appropriate units.
The circular rod shown (Figure 1) has dimensions d1 = 6 cm , L1 = 6 m , d2 = 4.2 cm , and L2 = 5 m with applied loads F...
The circular rod shown (Figure 1) has dimensions d1 = 6 cm , L1
= 6 m , d2 = 4.2 cm , and L2 = 5 m with applied loads F1 = 120 kN
and F2 = 60 kN . The modulus of elasticity is E = 85 GPa . Use the
following steps to find the deflection at point D. Point B is
halfway between points A and C.
1)
What is the reaction force at A? Let...
In one experiment, 9000 photons are detected in a 0.60 mm -wide strip where the amplitude of the electromagnetic wave is 100 V/m. Part A What is the wave amplitude at a nearby 0.90 mm -wide strip where 5000 photons are detected? Express your answer to two significant figures and include the appropriate units. ? MÅ Value N O 2 Units A = Submit Request Answer
Part A What is the approximate mass of air in a living room 5.3 m x 4.0 m x 2.9 m? The density of ar s1,29 kg/m Express your answer to two significant figures and include the appropriate units. m- Value Units
Part A Determine the inductance of a 0.60-m-long air-filled solenoid 2.7 cm in diameter containing 8800 loops. Express your answer using two significant figures. vu ΑΣΦ ? L = 0.13 H Submit Previous Answers Request Answer X Incorrect; Try Again
Constants Part A Suppose that you are in a 15-m-long hallway with all doors closed. Model the hallway as a tube closed at both ends. The speed of sound in air is 343 m/s. Determine the fundamental frequency of the hallway Express your answer to two significant figures and include the appropriate units. Value Units Submit Request Answer Part B Determine the first overtone frequency of the hallway Express your answer to two significant figures and include the appropriate units....
The circular rod shown (Figure 1) has dimensions d1 = 6 cm , L1
= 6 m , d2 = 4.2 cm , and L2 = 5 m with applied loads F1 = 120 kN
and F2 = 60 kN . The modulus of elasticity is E = 85 GPa . Use the
following steps to find the deflection at point D. Point B is
halfway between points A and C.
1)
What is the reaction force at A? Let...
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